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| 1321 | vana | 1 | /* |
| 2 | * Copyright (C) 2006 Jakub Vana |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1317 | vana | 29 | #include <sysinfo/sysinfo.h> |
| 30 | #include <mm/slab.h> |
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| 31 | #include <print.h> |
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| 1318 | vana | 32 | #include <syscall/copy.h> |
| 1317 | vana | 33 | |
| 34 | sysinfo_item_t *_root=NULL; |
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| 35 | |||
| 36 | |||
| 37 | static sysinfo_item_t* sysinfo_find_item(const char *name,sysinfo_item_t *subtree) |
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| 38 | { |
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| 39 | if(subtree==NULL) return NULL; |
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| 40 | while(subtree!=NULL) |
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| 41 | { |
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| 42 | int i; |
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| 43 | char *a,*b; |
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| 44 | a=(char *)name; |
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| 45 | b=subtree->name; |
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| 46 | while((a[i]==b[i])&&(b[i])) i++; |
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| 47 | if((!a[i]) && (!b[i])) return subtree; /*Last name in path matches*/ |
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| 48 | if((a[i]=='.') && (!b[i])) /*Middle name in path matches*/ |
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| 49 | { |
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| 50 | if(subtree->subinfo_type==SYSINFO_SUBINFO_TABLE) return sysinfo_find_item(a+i+1,subtree->subinfo.table); |
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| 51 | //if(subtree->subinfo_type==SYSINFO_SUBINFO_FUNCTION) return NULL; /* Subinfo managed by subsystem*/ |
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| 52 | return NULL; /*No subinfo*/ |
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| 53 | } |
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| 54 | /* No matches try next*/ |
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| 55 | subtree=subtree->next; |
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| 56 | i=0; |
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| 57 | } |
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| 58 | return NULL; |
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| 59 | } |
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| 60 | |||
| 61 | static sysinfo_item_t* sysinfo_create_path(const char *name,sysinfo_item_t **psubtree) |
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| 62 | { |
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| 63 | sysinfo_item_t *subtree; |
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| 64 | subtree = *psubtree; |
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| 65 | |||
| 66 | if(subtree==NULL) |
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| 67 | { |
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| 68 | sysinfo_item_t *item; |
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| 69 | int i=0,j; |
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| 70 | |||
| 71 | item = malloc(sizeof(sysinfo_item_t),0); |
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| 72 | ASSERT(item); |
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| 73 | *psubtree = item; |
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| 74 | item -> next = NULL; |
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| 75 | item -> val_type = SYSINFO_VAL_UNDEFINED; |
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| 76 | item -> subinfo.table = NULL; |
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| 77 | |||
| 78 | while(name[i]&&(name[i]!='.')) i++; |
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| 79 | |||
| 80 | item -> name = malloc(i,0); |
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| 81 | ASSERT(item -> name); |
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| 82 | |||
| 83 | for(j=0;j<i;j++) item->name[j]=name[j]; |
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| 84 | item->name[j]=0; |
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| 85 | |||
| 86 | if(name[i]/*=='.'*/) |
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| 87 | { |
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| 88 | item -> subinfo_type = SYSINFO_SUBINFO_TABLE; |
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| 89 | return sysinfo_create_path(name+i+1,&(item->subinfo.table)); |
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| 90 | } |
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| 91 | item -> subinfo_type = SYSINFO_SUBINFO_NONE; |
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| 92 | return item; |
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| 93 | } |
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| 94 | |||
| 95 | while(subtree!=NULL) |
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| 96 | { |
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| 97 | int i=0,j; |
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| 98 | char *a,*b; |
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| 99 | a=(char *)name; |
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| 100 | b=subtree->name; |
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| 101 | while((a[i]==b[i])&&(b[i])) i++; |
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| 102 | if((!a[i]) && (!b[i])) return subtree; /*Last name in path matches*/ |
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| 103 | if((a[i]=='.') && (!b[i])) /*Middle name in path matches*/ |
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| 104 | { |
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| 105 | if(subtree->subinfo_type==SYSINFO_SUBINFO_TABLE) return sysinfo_create_path(a+i+1,&(subtree->subinfo.table)); |
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| 106 | if(subtree->subinfo_type==SYSINFO_SUBINFO_NONE) |
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| 107 | { |
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| 108 | subtree->subinfo_type=SYSINFO_SUBINFO_TABLE; |
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| 109 | return sysinfo_create_path(a+i+1,&(subtree->subinfo.table)); |
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| 110 | } |
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| 111 | //if(subtree->subinfo_type==SYSINFO_SUBINFO_FUNCTION) return NULL; /* Subinfo managed by subsystem*/ |
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| 112 | return NULL; |
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| 113 | } |
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| 114 | /* No matches try next or create new*/ |
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| 115 | if(subtree->next==NULL) |
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| 116 | { |
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| 117 | sysinfo_item_t *item; |
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| 118 | |||
| 119 | item = malloc(sizeof(sysinfo_item_t),0); |
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| 120 | ASSERT(item); |
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| 121 | subtree -> next = item; |
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| 122 | item -> next = NULL; |
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| 123 | item -> val_type = SYSINFO_VAL_UNDEFINED; |
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| 124 | item -> subinfo.table = NULL; |
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| 125 | |||
| 126 | i=0; |
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| 127 | while(name[i]&&(name[i]!='.')) i++; |
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| 128 | |||
| 129 | item -> name = malloc(i,0); |
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| 130 | ASSERT(item -> name); |
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| 131 | for(j=0;j<i;j++) item->name[j]=name[j]; |
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| 132 | item->name[j]=0; |
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| 133 | |||
| 134 | if(name[i]/*=='.'*/) |
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| 135 | { |
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| 136 | item -> subinfo_type = SYSINFO_SUBINFO_TABLE; |
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| 137 | return sysinfo_create_path(name+i+1,&(item->subinfo.table)); |
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| 138 | } |
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| 139 | item -> subinfo_type = SYSINFO_SUBINFO_NONE; |
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| 140 | return item; |
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| 141 | |||
| 142 | } |
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| 143 | else |
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| 144 | { |
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| 145 | subtree=subtree->next; |
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| 146 | i=0; |
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| 147 | } |
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| 148 | } |
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| 149 | panic("Not reached\n"); |
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| 150 | return NULL; |
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| 151 | } |
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| 152 | |||
| 153 | void sysinfo_set_item_val(const char *name,sysinfo_item_t **root,__native val) |
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| 154 | { |
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| 155 | if(root==NULL) root=&_root; |
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| 156 | sysinfo_item_t *item; |
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| 157 | item = sysinfo_create_path(name,root); /* If already created create only returns pointer |
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| 158 | If ! , create it */ |
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| 159 | if(item!=NULL) /* If in subsystem, unable to create or return so unable to set */ |
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| 160 | { |
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| 161 | item->val.val=val; |
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| 162 | item -> val_type = SYSINFO_VAL_VAL; |
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| 163 | } |
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| 164 | } |
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| 165 | |||
| 166 | void sysinfo_set_item_function(const char *name,sysinfo_item_t **root,sysinfo_val_fn_t fn) |
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| 167 | { |
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| 168 | if(root==NULL) root=&_root; |
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| 169 | sysinfo_item_t *item; |
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| 170 | item = sysinfo_create_path(name,root); /* If already created create only returns pointer |
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| 171 | If ! , create it */ |
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| 172 | if(item!=NULL) /* If in subsystem, unable to create or return so unable to set */ |
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| 173 | { |
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| 174 | item->val.fn=fn; |
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| 175 | item -> val_type = SYSINFO_VAL_FUNCTION; |
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| 176 | } |
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| 177 | } |
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| 178 | |||
| 179 | |||
| 180 | void sysinfo_set_item_undefined(const char *name,sysinfo_item_t **root) |
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| 181 | { |
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| 182 | if(root==NULL) root=&_root; |
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| 183 | sysinfo_item_t *item; |
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| 184 | item = sysinfo_find_item(name,*root); |
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| 185 | if(item!=NULL) item -> val_type = SYSINFO_VAL_UNDEFINED; |
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| 186 | } |
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| 187 | |||
| 188 | |||
| 189 | void sysinfo_dump(sysinfo_item_t **proot,int depth) |
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| 190 | { |
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| 191 | sysinfo_item_t *root; |
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| 192 | if(proot==NULL) proot=&_root; |
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| 193 | root = *proot; |
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| 194 | |||
| 195 | while(root!=NULL) |
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| 196 | { |
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| 197 | |||
| 198 | int i; |
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| 199 | __native val=0; |
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| 200 | char *vtype=NULL; |
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| 201 | |||
| 202 | |||
| 203 | for(i=0;i<depth;i++) printf(" "); |
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| 204 | |||
| 205 | switch (root->val_type) |
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| 206 | { |
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| 207 | case (SYSINFO_VAL_UNDEFINED): |
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| 208 | val=0; |
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| 209 | vtype="UND"; |
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| 210 | break; |
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| 211 | case (SYSINFO_VAL_VAL): |
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| 212 | val=root->val.val; |
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| 213 | vtype="VAL"; |
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| 214 | break; |
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| 215 | case (SYSINFO_VAL_FUNCTION): |
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| 216 | val=((sysinfo_val_fn_t)(root->val.fn))(root); |
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| 217 | vtype="FUN"; |
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| 218 | break; |
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| 219 | } |
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| 220 | printf("%s %s val:%d(%X) sub:%s\n",root->name,vtype,val,val, |
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| 221 | (root->subinfo_type==SYSINFO_SUBINFO_NONE)?"NON":((root->subinfo_type==SYSINFO_SUBINFO_TABLE)?"TAB":"FUN")); |
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| 222 | |||
| 223 | |||
| 224 | if(root -> subinfo_type == SYSINFO_SUBINFO_TABLE) |
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| 225 | sysinfo_dump(&(root->subinfo.table),depth+1); |
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| 226 | root=root->next; |
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| 227 | } |
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| 228 | } |
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| 229 | |||
| 230 | sysinfo_rettype_t sysinfo_get_val(const char *name,sysinfo_item_t **root) |
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| 231 | { |
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| 232 | /*TODO: |
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| 233 | Implement Subsystem subinfo (by function implemented subinfo) |
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| 234 | */ |
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| 235 | |||
| 236 | sysinfo_rettype_t ret={0,false}; |
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| 237 | |||
| 238 | if(root==NULL) root=&_root; |
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| 239 | sysinfo_item_t *item; |
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| 240 | item = sysinfo_find_item(name,*root); |
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| 241 | if(item!=NULL) |
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| 242 | { |
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| 243 | if (item -> val_type == SYSINFO_VAL_UNDEFINED) |
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| 244 | return ret; |
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| 245 | else ret.valid=true; |
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| 246 | if (item -> val_type == SYSINFO_VAL_VAL) |
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| 247 | ret.val=item -> val.val; |
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| 248 | else ret.val=((sysinfo_val_fn_t)(item->val.fn))(item); |
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| 249 | } |
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| 250 | return ret; |
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| 251 | } |
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| 1318 | vana | 252 | |
| 253 | __native sys_sysinfo_valid(__native ptr,__native len) |
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| 254 | { |
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| 255 | char *str; |
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| 256 | sysinfo_rettype_t ret; |
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| 257 | str=malloc(len+1,0); |
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| 258 | ASSERT(str); |
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| 1322 | vana | 259 | if(!((copy_from_uspace(str,(void *)ptr,len+1))||(str[len]))) |
| 260 | ret=sysinfo_get_val(str,NULL); |
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| 1318 | vana | 261 | free(str); |
| 262 | return ret.valid; |
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| 263 | } |
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| 264 | |||
| 265 | __native sys_sysinfo_value(__native ptr,__native len) |
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| 266 | { |
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| 267 | char *str; |
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| 268 | sysinfo_rettype_t ret; |
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| 269 | str=malloc(len+1,0); |
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| 270 | ASSERT(str); |
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| 1322 | vana | 271 | if(!((copy_from_uspace(str,(void *)ptr,len+1))||(str[len]))) |
| 272 | ret=sysinfo_get_val(str,NULL); |
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| 1318 | vana | 273 | free(str); |
| 274 | return ret.val; |
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| 275 | } |
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| 276 | |||
| 277 |